Heating assembly of glass tempering furnace

Abstract

The utility model relates to a heating assembly of a glass tempering furnace, and belongs to the technical field of glass tempering furnace heating equipment. A heating assembly of a glass tempering furnace comprises a heating wire, a conductive lead, a ceramic insulating cylinder and a connecting sleeve. The device is characterized in that the two ends of the heating wire are respectively connected with a connecting sleeve in a welding manner; one end of the connecting sleeve is welded with a conductive lead; a ceramic insulating cylinder is sleeved outside the conductive lead; the heating wire is made of nickel-chromium alloy; the connecting sleeve and the conductive lead are made of stainless steel materials. The heating assembly of the glass tempering furnace is simple in structure and ingenious in design, solves the problem that local positions of the existing heating wires in the glass tempering furnace are easy to fuse, and is particularly suitable for use requirements of the glass tempering furnace.

Description

Technical Field

[0001] This utility model relates to a heating component for a glass tempering furnace, belonging to the technical field of glass tempering furnace heating equipment. Background Technology

[0002] In the field of glass production technology, glass tempering furnaces are crucial equipment for heating glass to its softening point (around 650°C) and then rapidly cooling it with blowing air to improve its bending and impact resistance. Existing heating components in glass tempering furnaces, such as the convection heating device disclosed in utility model patent CN206767935U, involve heating wire leads connected to both ends of the heating wire; an insulating tube is fitted around the heating wire leads. During operation, the heating wire is connected to an external current through the heating wire leads, allowing current to flow through the heating wire to generate heat. However, both the existing heating wire and heating wire leads are made of nickel-chromium alloy. During operation, external impurities can easily enter the insulating tube and encase the heating wire leads, making it difficult for the heat dissipated from the leads to escape, leading to localized overheating and potential melting. Therefore, it is necessary to develop a new heating component to solve the above problems associated with existing heating wires in glass tempering furnaces. Summary of the Invention

[0003] The purpose of this utility model is to provide a heating component for a glass tempering furnace that is compact in structure and ingenious in design, so as to solve the problem that the heating wires in existing glass tempering furnaces are prone to local melting.

[0004] The technical solution of this utility model is:

[0005] A heating assembly for a glass tempering furnace includes a heating wire, a conductive lead, a ceramic insulating cylinder, and a connecting sleeve; characterized in that: the two ends of the heating wire are respectively welded to the connecting sleeve; a conductive lead is welded to one end of the connecting sleeve; the conductive lead is fitted with a ceramic insulating cylinder; the heating wire is made of nickel-chromium alloy; and the connecting sleeve and the conductive lead are made of stainless steel.

[0006] The heating wire has a spiral structure.

[0007] The connecting sleeve has welding windows A and welding windows B arranged in an alternating pattern on both sides; one end of the heating wire is inserted into the connecting sleeve and then welded to it through welding window A; one end of the conductive lead is inserted into the connecting sleeve and then welded to it through welding window B.

[0008] The inner hole of the ceramic insulating cylinder is a straight hole structure; a limiting ring ridge is provided on the circumferential surface of one end of the ceramic insulating cylinder.

[0009] The advantages of this utility model are:

[0010] The heating element of this glass tempering furnace has a simple structure and ingenious design. It uses stainless steel with low resistivity as the conductive lead. When current passes through the conductive lead, the heat generated is small due to its low resistivity. Therefore, even if the surface is covered with impurities, it will not melt due to poor heat dissipation. This solves the problem of localized melting of existing heating wires in glass tempering furnaces, making it particularly suitable for the needs of glass tempering furnaces. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a partial structural schematic diagram of the present invention;

[0013] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0014] Figure 4 This is a schematic diagram of the connecting sleeve of this utility model;

[0015] Figure 5 This is a cross-sectional structural diagram of the connecting sleeve of this utility model;

[0016] Figure 6 This is a schematic diagram of the structure of the ceramic insulating cylinder of this utility model;

[0017] Figure 7 for Figure 3 A magnified structural diagram at point B in the middle.

[0018] In the diagram: 1. Heating wire; 2. Connecting sleeve; 3. Conductive lead; 4. Ceramic insulating cylinder; 5. Welding window A; 6. Welding window B; 7. Limiting ring ridge. Detailed Implementation

[0019] The heating assembly of this glass tempering furnace includes a heating wire 1, a conductive lead 3, a ceramic insulating cylinder 4, and a connecting sleeve 2 (see the instruction manual appendix). Figure 1 ).

[0020] Heating wire 1 has a spiral structure and is made of nickel-chromium alloy, which has the characteristics of high temperature resistance, high resistance and long life. Due to its high resistance, it generates heat when current passes through it, thereby achieving the purpose of heating the glass in the tempering furnace.

[0021] The heating wire 1 has connecting sleeves 2 welded to both ends; a conductive lead 3 is welded to one end of the connecting sleeve 2.

[0022] The connecting sleeve 2 has welding windows A5 and B6 arranged in an alternating pattern on both sides; one end of the heating wire 1 is inserted into the connecting sleeve 2 and then welded to it through welding window A5; one end of the conductive lead 3 is inserted into the connecting sleeve 2 and then welded to it through welding window B6 (see the appendix of the instruction manual). Figure 4 , 5 and 6).

[0023] The purpose of setting the connecting sleeve 2 in this way is that: when one end of the heating wire 1 is inserted into the connecting sleeve 2 during assembly, the welding gun can weld the heating wire 1 to the connecting sleeve 2 through the welding window A5; when one end of the conductive lead 3 is inserted into the connecting sleeve 2, the welding gun can weld the conductive lead 3 to the connecting sleeve 2 through the welding window B6.

[0024] The connecting sleeve 2 and the conductive lead 3 are made of stainless steel. The purpose of this design is to utilize the low resistivity and low heat generation characteristics of stainless steel, so that even if it is encased in impurities, it will not overheat and melt.

[0025] The conductive lead 3 is fitted with a ceramic insulating cylinder 4; the inner hole of the ceramic insulating cylinder 4 is a straight hole structure; a limiting ring 7 is provided on the circumferential surface of one end of the ceramic insulating cylinder 4 (see the instruction manual). Figure 1 and 6 The ceramic insulating cylinder 4 is installed on the glass tempering furnace under the positioning of the limiting ring 7, and the conductive lead 3 passes through the ceramic insulating cylinder 4 and is connected to the external power supply equipment.

[0026] The heating component of this glass tempering furnace has a simple structure and ingenious design. It uses stainless steel with low resistivity as the conductive lead 3. When current passes through the conductive lead 3, the heat generated is small due to its low resistivity. Therefore, even if its surface is covered with impurities, it will not melt due to poor heat dissipation. This solves the problem of easy melting in localized areas of the existing heating wire 1 in glass tempering furnaces, and is particularly suitable for the needs of glass tempering furnaces.

Claims

1. A heating assembly for a glass tempering furnace, comprising a heating wire (1), a conductive lead (3), a ceramic insulating cylinder (4), and a connecting sleeve (2); characterized in that: The heating wire (1) is connected to a connecting sleeve (2) at both ends; a conductive lead (3) is connected to one end of the connecting sleeve (2); a ceramic insulating sleeve (4) is fitted over the conductive lead (3); the heating wire (1) is made of nickel-chromium alloy; the connecting sleeve (2) and the conductive lead (3) are made of stainless steel.

2. The heating assembly of a glass tempering furnace according to claim 1, characterized in that: The heating wire (1) has a spiral structure.

3. The heating assembly of a glass tempering furnace according to claim 1, characterized in that: The connecting sleeve (2) has welding windows A (5) and welding windows B (6) arranged in an alternating pattern on both sides; one end of the heating wire (1) is inserted into the connecting sleeve (2) and then welded to it through welding window A (5); one end of the conductive lead (3) is inserted into the connecting sleeve (2) and then welded to it through welding window B (6).

4. The heating assembly of a glass tempering furnace according to claim 1, characterized in that: The inner hole of the ceramic insulating cylinder (4) is a straight hole structure; a limiting ring ridge (7) is provided on the circumferential surface of one end of the ceramic insulating cylinder (4).

Images